I recently saw an interesting question: How big is the bandwidth of the Douyin server, and why can it be used by so many people at the same time? Today I will give you a popular science.
First, we need to understand what server bandwidth is. Server bandwidth refers to the transmission rate of a data center or server center connected to the Internet, usually measured in Mbps or Gbps . This determines how many users the server can support simultaneously connecting and accessing it. Therefore, for short video applications such as Douyin, server bandwidth is crucial.
We can know from Douyin's official public information that as of June 2021, Douyin already has more than 1 billion users. In order to support such a huge number of users, Douyin needs to invest a lot of hardware and software resources. According to Douyin's official disclosure, its data center is located in China and covers cloud service providers around the world, processing hundreds of millions of video requests every day. For such a huge user and data load, how big is the server bandwidth of Douyin?
First, we need to understand Douyin's server architecture. According to Douyin's official introduction, its server architecture is based on distributed storage and computing cloud architecture. Through distributed computing and distributed storage technology, Douyin can disperse and store data in different server nodes, improve data processing and transmission efficiency, and thus better support users' video playback and upload operations. This architecture can effectively improve the scalability and performance of the server, so as to better respond to large-scale user requests.
According to our survey, Douyin's server bandwidth is usually dynamically adjusted according to the current user volume. Generally speaking, Douyin's server bandwidth will reach a speed of hundreds of Gbps during the peak period to cope with hundreds of millions of video requests from different regions around the world. At the same time, Douyin also adopts CDN (Content Distribution Network) technology to distribute video resources in CDN nodes around the world , so as to better support users' video playback and upload operations. This technology can effectively improve the loading speed and stability of videos, so as to better provide users with high-quality video services.
In addition, Douyin also uses some other technical means to improve server bandwidth and performance. For example, Douyin adopts distributed caching technology to reduce network delay and transmission cost when data is accessed by caching data in multiple server nodes. In addition, Douyin also uses multi-layer load balancing technology to achieve better performance and reliability by distributing requests to multiple server nodes.
To sum up, the bandwidth of the Douyin server is usually in the range of hundreds of Gbps . This is achieved by adopting a series of technical means such as distributed storage and computing, CDN technology, distributed cache technology, and multi-layer load balancing technology . These technologies can make Douyin's servers more scalable, efficient and stable, so as to better support hundreds of millions of users watching videos at the same time.